​An iCalendar (.ICS) file can be send (by user preference) as attachment to each email notification.

Contacts can be imported from Windows Address Book

Blue moon info is displayed on calendar and it is included in the full moon email notification.The Blue MoonThis is the second Full Moon which falls within a single month, it varies each year. When the Blue Moon occurs plan to do something strange, something you have never done before. Write letters to folks you have not seen for years, plan a surprise for some- one you love. Howl at the Moon!